CN216635316U

CN216635316U - Extrusion device is used in polypropylene film production

Info

Publication number: CN216635316U
Application number: CN202220063544.2U
Authority: CN
Inventors: 黄炎煌
Original assignee: Quanzhou Jiadeli Electronic Material Co ltd
Current assignee: Quanzhou Jiadeli Electronic Materials Co.,Ltd.
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-05-31
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to the technical field of film processing, and discloses an extrusion device for producing a polypropylene film, which comprises a rack, wherein the top of the rack is provided with an extrusion cylinder, and the top of one side of the extrusion cylinder is connected with a feeding cylinder; one or more heating and stirring devices are rotationally connected in the feeding cylinder, and the heating and stirring devices are driven by a stirring motor arranged on the outer side wall of the feeding cylinder to rotate; a material shifting motor is arranged on one side of the bottom of the feeding cylinder and is connected with a material shifting rotating shaft arranged at an outlet at the bottom of the feeding cylinder; a feeding shaft is arranged inside the extrusion cylinder, one end of the feeding shaft extends out of the extrusion cylinder and is provided with a feeding driven wheel, a feeding motor is arranged at the bottom of the rack, a feeding driving wheel is arranged on an output shaft of the feeding motor, and a feeding belt is tensioned outside the feeding driven wheel and the feeding driving wheel. The utility model can avoid the blockage in the feeding process and ensure that the raw material particles of the film are heated and melted thoroughly.

Description

Extrusion device is used in polypropylene film production

Technical Field

The utility model relates to the technical field of film processing, in particular to an extrusion device for producing a polypropylene film.

Background

Extruders are common equipment used in the production of films. When adding film raw material granule in the extruder in large batch, feeding device often appears the charging process and blocks up, leads to reinforced discontinuity, and material transport volume control is inhomogeneous, leads to the not thorough problem of later stage material heating melting, and then influences the blown film effect, makes the film of extruder production often go out to have graininess, and this granule hot melt department is compared in the colour of other positions and is presented darker form, then can directly influence the thickness of whole film.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an extrusion apparatus for producing a polypropylene film, which avoids the blockage in the feeding process and enables the raw material particles of the film to be heated and melted thoroughly.

In order to achieve the purpose, the utility model adopts the following technical scheme: the extrusion device for producing the polypropylene film comprises a rack, wherein an extrusion cylinder is arranged at the top of the rack, and the top of one side of the extrusion cylinder is connected with a feeding cylinder; one or more heating and stirring devices are rotationally connected in the feeding cylinder, and the heating and stirring devices are driven by a stirring motor arranged on the outer side wall of the feeding cylinder to rotate; a material shifting motor is arranged on one side of the bottom of the feeding cylinder and is connected with a material shifting rotating shaft arranged at an outlet at the bottom of the feeding cylinder; the extrusion device is characterized in that a feeding shaft is arranged inside the extrusion cylinder, one end of the feeding shaft extends to the outside of the extrusion cylinder and is provided with a feeding driven wheel, a feeding motor is arranged at the bottom of the rack, a feeding driving wheel is arranged on an output shaft of the feeding motor, and a feeding belt is tensioned on the feeding driven wheel and the outer side of the feeding driving wheel.

Further, heating agitating unit is in including stirring pivot, interval setting stirring vane, the setting of stirring pivot lateral surface are in the inside spiral heating wire of stirring pivot, the one end of stirring pivot extends to the feed cylinder outside is connected with the temperature controller.

Further, from last to rotating in proper order down in the feeding section of thick bamboo and being connected with two heating agitating unit, one of them stirring pivot one end extends to feeding section of thick bamboo outside is installed the stirring from the driving wheel, another stirring pivot one end extends to feeding section of thick bamboo outside is installed the stirring action wheel, the stirring from the driving wheel with the outside tensioning of stirring action wheel has the stirring belt, agitator motor's output with the stirring action wheel place the stirring pivot is connected.

Furthermore, the bottom inside of a feeding cylinder is provided with a gravity sensor, and the top of the feeding cylinder is provided with a warning light.

Furthermore, a feeding control valve is arranged above the material stirring rotating shaft of the feeding cylinder.

Furthermore, a pushing spiral stirring blade is arranged on the outer surface of the right side of the feeding shaft, an extruding spiral stirring blade is arranged on the outer surface, close to the left side of the pushing spiral stirring blade, of the feeding shaft, and a conical head is arranged at the end of the left side of the feeding shaft.

Further, the outer diameter of the pushing spiral stirring blade is larger than that of the extruding spiral stirring blade, and the distance between the pushing spiral stirring blades is larger than that between the extruding spiral stirring blades.

Furthermore, an extrusion cavity is formed in the extrusion container, and the structure of the extrusion cavity is matched with the pushing spiral stirring blade, the extrusion spiral stirring blade and the conical head.

Further, the recipient includes inner wall and outer wall, and the inner wall is the heat-conducting layer, and the outer wall is the heat insulation layer, sets up to the installation cavity between inner wall and the outer wall, be provided with the heating pipe in the installation cavity.

Advantageous effects

Compared with the prior art, the utility model at least comprises the following advantages: 1. the heating and stirring device fully stirs and preheats the film raw material particles, prevents the film raw material particles from directly entering the extrusion cylinder, prevents individual particles from absorbing enough heat to influence the melting and extrusion of the film raw material particles, shortens the melting time of the film raw material particles in the extrusion cylinder and ensures that the film raw material particles can be fully melted from entering the extrusion cylinder to being extruded. 2. Preheated film raw material particles are transferred into the extrusion cylinder by the material shifting blade on the material shifting rotating shaft, and cannot block the outlet of the feeding cylinder, so that the subsequent extrusion and melting of the film raw material particles are influenced. 3. When the gravity sensor senses that the film raw material particles are not enough, the warning lamp 22 flickers to remind personnel of feeding, and the problem of incomplete melting caused by untimely supply of the film raw material particles is avoided. 4. The pushing spiral stirring blade continuously stirs the film raw material particles which are melting to enable the film raw material particles to fully absorb heat and melt thoroughly, the film raw material particles are pushed forwards, the extruding spiral stirring blade cuts the melted film raw material particles into small components to be extruded and pushed forwards, and the conical head extrudes a film and outputs the film.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

The figure is marked with: 1-a frame; 2-a feeding motor; 3-a feeding driving wheel; 4-feeding driven wheel; 5-a feeding belt; 6-a feeding shaft; 60-a conical head; 61-pushing the spiral stirring blade; 62-extruding a spiral stirring blade; 7-heating the pipe; 8-a material shifting motor; 9-material shifting rotating shaft; 10-a feed control valve; 11-a gravity sensor; 12-a stirring motor; 13-stirring driving wheel; 14-stirring driven wheels; 15-stirring belt; 16-a stirring rotating shaft; 17-stirring blades; 18-spiral heating wire; 19-temperature controller; 20-a feed hopper; 21-a dust cover; 22-warning light; 23-a master controller; 24-a temperature sensor; 100-an extrusion cylinder; 200-an extrusion chamber; 300-feeding cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description is made with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the one element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an extrusion device for producing polypropylene films comprises a frame 1, wherein a master controller 23 is arranged on the front side of the frame 1. The top of frame 1 is provided with container 100, one side top of container 100 is connected with feed cylinder 300, and the top intercommunication of feed cylinder 300 is provided with feeder hopper 20, and the top of feeder hopper 20 is provided with shield 21, prevents that the dust from falling into feed cylinder 300, influences the film and extrudes the quality.

One or more heating and stirring devices are rotationally connected in the feeding cylinder 300, and a plurality of temperature sensors 24 distributed on the inner side wall of the feeding cylinder 300 are also arranged; the heating and stirring device is driven to rotate by a stirring motor 12 arranged on the outer side wall of the feeding cylinder 300. Heating agitating unit is in including stirring pivot 16, interval setting a plurality of stirring vane 17, the setting of 16 lateral surfaces of stirring pivot are in the inside spiral heating wire 18 of stirring pivot 16, the one end of stirring pivot 16 extends to feed cylinder 300 outside is connected with temperature controller 19, and temperature controller 19 carries out the heating of suitable temperature according to the temperature in the feed cylinder 300 of temperature sensor 24 monitoring, steerable spiral heating wire 18, preheats film raw materials granule, nevertheless does not make film raw materials granule carry out the melting.

In this embodiment, from last to rotating in proper order down in the feed cylinder 300 and being connected with two heating agitating unit, wherein be located one of top 16 one end of stirring pivot extends to feed cylinder 300 outside is installed the stirring from driving wheel 14, another that is located the below 16 one end of stirring pivot extends to feed cylinder 300 outside is installed the stirring action wheel 13, the stirring from driving wheel 14 with the outside tensioning of stirring action wheel 13 has stirring belt 15, agitator motor 12's output with stirring action wheel 13 place stirring pivot 16 is connected. Stirring motor 12 work, and the stirring pivot 16 that drives the below rotates, and stirring pivot 16 rotates and drives stirring action wheel 13 and rotate to drive stirring belt 15 and rotate, thereby stirring belt 15 rotates and drives the stirring and rotate from driving wheel 14, makes the stirring pivot 16 of top rotate. The stirring blades 17 on the two stirring rotating shafts 16 stir and preheat the film raw material particles in the feeding cylinder 300.

The utility model discloses a film extrusion melting device, including a feeding barrel 300, a feeding barrel 300 bottom one side is provided with dials material motor 8, dial material motor 8 and setting and be in the material pivot 9 of dialling of feeding barrel 300 bottom exit is connected, dials the interval and is provided with a plurality of and dials the material blade on the material pivot 9, starts to dial material motor 8, dials material pivot 9 and rotates, dials the material blade and dials the film raw materials granule after preheating, prevents to block up the export at feeding barrel 300, influences the extrusion melting of follow-up to film raw materials granule.

In order to remind people of feeding in time, the inner side of the bottom of the feeding cylinder 300 is provided with a gravity sensor 11, the top of the feeding cylinder is provided with a warning lamp 22, the feeding cylinder 300 is positioned above the material stirring rotating shaft and is provided with a feeding control valve 10, and film raw material particles are controlled to enter the extrusion cylinder 100. When the gravity sensor 11 senses that the film raw material particles are insufficient, the warning lamp 22 flashes to remind people.

The extrusion barrel 100 is internally provided with a feeding shaft 6, one end of the feeding shaft 6 extends out of the extrusion barrel 100 and is provided with a feeding driven wheel 4, the bottom of the rack 1 is provided with a feeding motor 2, an output shaft of the feeding motor 2 penetrates through the side wall of the rack 1 and is provided with a feeding driving wheel 3, and a feeding belt 5 is tensioned on the outer sides of the feeding driven wheel 4 and the feeding driving wheel 3.

In order to sufficiently stir and melt the raw material particles of the film and to enable efficient extrusion. The outer surface of the right side of the feeding shaft 6 is provided with a pushing spiral stirring blade 61, the outer surface of the feeding shaft 6, which is close to the left side of the pushing spiral stirring blade 61, is provided with an extruding spiral stirring blade 62, and the end part of the left side of the feeding shaft 6 is provided with a conical head 60. The outer diameter of the pushing spiral stirring blade 61 is larger than that of the extruding spiral stirring blade 62, and the distance between the pushing spiral stirring blades 61 is larger than that of the extruding spiral stirring blade 62. Inside the setting of recipient 100 is extrusion chamber 200, extrusion chamber 200 the structure with propelling movement spiral stirring leaf 61 extrusion spiral stirring leaf 62 with conical head 60 looks adaptation for extrusion chamber 300 is located the position diameter of propelling movement spiral stirring leaf 61 big, and the position diameter that is located extrusion spiral stirring leaf 62 is little, and is located conical head 60's position, and extrusion chamber 200 is the toper structure.

In order to prevent the heat of the container 100 from being dissipated to the outside, causing heat loss and affecting the melting of the film raw material particles in the extrusion cavity 200, the container 100 comprises an inner wall and an outer wall, the inner wall is a heat conduction layer, the outer wall is a heat insulation layer, an installation cavity is arranged between the inner wall and the outer wall, and a heating pipe 7 is arranged in the installation cavity.

The master controller 23 controls the heating of the heating pipe 7 and controls the work of the material stirring motor 8, the stirring motor 12 and the feeding motor 2; and receiving a gravity signal monitored by the gravity sensor 11, controlling the warning lamp 22 to flash, and playing voice by the master controller 23.

The working principle is as follows: the film raw material particles are poured into the feeding barrel 300 from the feeding hopper 20, the heating and stirring device fully stirs and preheats the film raw material particles, the film raw material particles are prevented from directly entering the extrusion barrel 100, and the melting and extrusion of the film raw material particles are not influenced by the fact that the individual particles do not absorb enough heat, on the other hand, the melting time of the film raw material particles in the extrusion barrel 100 can be shortened, and the film raw material particles can be fully melted from entering the extrusion barrel 100 to being extruded. The preheated film raw material particles are pushed into the extrusion cylinder 100 by the material pushing blades on the material pushing rotating shaft 9 and cannot block the outlet of the feeding cylinder 300. The pushing spiral stirring blade 61 continuously stirs and forwards pushes the molten film raw material particles, the extruding spiral stirring blade 62 divides the molten film raw material particles into small components to be forwards extruded and pushed, and the conical head 60 extrudes a film and outputs the film.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The extrusion device for producing the polypropylene film is characterized by comprising a rack, wherein the top of the rack is provided with an extrusion cylinder, and the top of one side of the extrusion cylinder is connected with a feeding cylinder; one or more heating and stirring devices are rotationally connected in the feeding cylinder, and the heating and stirring devices are driven by a stirring motor arranged on the outer side wall of the feeding cylinder to rotate; a material shifting motor is arranged on one side of the bottom of the feeding cylinder and is connected with a material shifting rotating shaft arranged at an outlet at the bottom of the feeding cylinder; the extrusion device is characterized in that a feeding shaft is arranged inside the extrusion cylinder, one end of the feeding shaft extends to the outside of the extrusion cylinder and is provided with a feeding driven wheel, a feeding motor is arranged at the bottom of the rack, a feeding driving wheel is arranged on an output shaft of the feeding motor, and a feeding belt is tensioned on the feeding driven wheel and the outer side of the feeding driving wheel.

2. The extrusion device as claimed in claim 1, wherein the heating and stirring device comprises a stirring shaft, stirring blades spaced on the outer side of the stirring shaft, and a spiral heating wire disposed inside the stirring shaft, and one end of the stirring shaft extends to the outside of the feeding cylinder and is connected to a temperature controller.

3. The extrusion device for producing the polypropylene film as claimed in claim 2, wherein two heating and stirring devices are sequentially connected to the feeding cylinder from top to bottom in a rotating manner, one of the two heating and stirring devices is provided with a stirring driving wheel, one end of the stirring rotating shaft extends to the outside of the feeding cylinder, the other end of the stirring rotating shaft extends to the outside of the feeding cylinder, the stirring driving wheel is provided with a stirring belt, and the stirring rotating shaft is connected with the stirring driving wheel.

4. The extrusion device for producing the polypropylene film as claimed in claim 1, wherein the feeding cylinder is provided with a gravity sensor at the inner side of the bottom and a warning light at the top.

5. The extrusion device for producing the polypropylene film as recited in claim 1, wherein a feeding control valve is disposed above the material stirring rotating shaft of the feeding barrel.

6. The extrusion device for producing the polypropylene film as claimed in claim 1, wherein a pushing spiral stirring blade is arranged on the outer surface of the right side of the feeding shaft, an extrusion spiral stirring blade is arranged on the outer surface of the feeding shaft close to the left side of the pushing spiral stirring blade, and a conical head is arranged at the end part of the left side of the feeding shaft.

7. The extrusion device as claimed in claim 6, wherein the outer diameter of the spiral stirring blades is larger than that of the extrusion spiral stirring blades, and the pitch of the spiral stirring blades is larger than that of the extrusion spiral stirring blades.

8. The extrusion device for producing the polypropylene film as recited in claim 7, wherein the extrusion container is internally provided with an extrusion chamber, and the structure of the extrusion chamber is matched with the pushing spiral stirring blade, the extrusion spiral stirring blade and the conical head.

9. The extrusion device for producing the polypropylene film as recited in claim 1, wherein the container includes an inner wall and an outer wall, the inner wall is a heat conducting layer, the outer wall is a heat insulating layer, a mounting cavity is provided between the inner wall and the outer wall, and the heating pipe is provided in the mounting cavity.